improving sleep, decision-making, and eating in adolescents with obesity

Conditions: Adolescent Overweight; Adolescent Obesity; Sleep; Eating Behaviors; Dietary Intake

Summary: this study is being performed to understand the effects of a lifestyle modification and sleep intervention on weight loss outcomes in adolescence. the main question the study aims to answer is: - what are the initial effects of a lifestyle modification and sleep intervention, including effects on weight, eating behaviors and dietary intake, and sleep? participants will: * participate in remote, group-based, weekly weight loss and sleep coaching for 16 weeks. * complete study assessments at baseline (pre-intervention), mid-intervention, and post-intervention. * complete daily sleep diaries for three 7-day periods at each assessment point.

in this study, the investigators will develop, refine, and test a 16-session group-based lifestyle modification intervention for adolescents with overweight and obesity augmented with a sleep intervention. the investigators will develop the manual and pilot the intervention in an initial set of adolescents (n=10). the investigators will collect feedback from adolescents, parents, and clinicians, which will inform manual refinements. the investigators will complete an open trial (n=40) of the refined manual. for both phases, the investigators will recruit adolescents (ages 14-18) with overweight or obesity who endorse at least 1 type of sleep disturbance (i.e., too little, poor quality, poorly timed, or inconsistent sleep). assessments of sleep, decision-making, problematic eating behaviors, energy intake, and weight will occur at baseline (week 0), mid-intervention (week 8) and post-intervention (week 16).

Eligibility criteria:
inclusion criteria: * ages 14-18 * fluent in english * bmi percentile ≥ 85th percentile for sex-and-age * has a parent or guardian who is willing and able to participate * has at least one sleep disturbance. eligible sleep disturbances are: a. advanced sleep timing (sleep onset 11:00pm or later for 14-16 year-olds or 11:20pm or later for 17-18 year-olds at least 3 times per week), b. difficulty falling asleep (taking ≥ 30 mins to get to sleep 3 or more nights per week), c. short sleep (obtaining \< 7.5 hours of sleep per night 3 or more nights per week), and d. sleep irregularity (having more than 2 hours of variability in sleep-wake schedule across one week exclusion criteria: * experience of weight loss of ≥ 5% of body weight in the past 6 months * current use of insomnia medication * having recently begun or changed the dosage of any medication known to affect appetite or body composition within the last 3 months * currently taking weight loss medications * currently taking insulin * diagnosed diabetes (type 1) * any condition prohibiting physical activity * diagnosis of an eating disorder * diagnosis of obstructive sleep apnea * recent or ongoing problem with drug abuse, alcohol abuse, or addiction * currently pregnant or less than 3 months postpartum * anticipation of a possible pregnancy in the next year * unwillingness to report possible or confirmed pregnancies promptly during the course of the trial * currently participating in treatment for eating or weight concerns * does not have regular access to wi-fi connection to participate in study interventions.

Keywords: adolescent weight loss adolescent sleep adolescent eating